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sql-statement-create-view.md

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CREATE VIEW | TiDB SQL Statement Reference
An overview of the usage of CREATE VIEW for the TiDB database.
/docs/v3.1/sql-statements/sql-statement-create-view/
/docs/v3.1/reference/sql/statements/create-view/

CREATE VIEW

The CREATE VIEW statement saves a SELECT statement as a queryable object, similar to a table. Views in TiDB are non-materialized. This means that as a view is queried, TiDB will internally rewrite the query to combine the view definition with the SQL query.

Synopsis

CreateViewStmt:

CreateViewStmt

OrReplace:

OrReplace

ViewAlgorithm:

ViewAlgorithm

ViewDefiner:

ViewDefiner

ViewSQLSecurity:

ViewSQLSecurity

ViewName:

ViewName

ViewFieldList:

ViewFieldList

ViewCheckOption:

ViewCheckOption

Examples

mysql> CREATE TABLE t1 (id INT NOT NULL PRIMARY KEY AUTO_INCREMENT, c1 INT NOT NULL);
Query OK, 0 rows affected (0.11 sec)

mysql> INSERT INTO t1 (c1) VALUES (1),(2),(3),(4),(5);
Query OK, 5 rows affected (0.03 sec)
Records: 5  Duplicates: 0  Warnings: 0

mysql> CREATE VIEW v1 AS SELECT * FROM t1 WHERE c1 > 2;
Query OK, 0 rows affected (0.11 sec)

mysql> SELECT * FROM t1;
+----+----+
| id | c1 |
+----+----+
|  1 |  1 |
|  2 |  2 |
|  3 |  3 |
|  4 |  4 |
|  5 |  5 |
+----+----+
5 rows in set (0.00 sec)

mysql> SELECT * FROM v1;
+----+----+
| id | c1 |
+----+----+
|  3 |  3 |
|  4 |  4 |
|  5 |  5 |
+----+----+
3 rows in set (0.00 sec)

mysql> INSERT INTO t1 (c1) VALUES (6);
Query OK, 1 row affected (0.01 sec)

mysql> SELECT * FROM v1;
+----+----+
| id | c1 |
+----+----+
|  3 |  3 |
|  4 |  4 |
|  5 |  5 |
|  6 |  6 |
+----+----+
4 rows in set (0.00 sec)

mysql> INSERT INTO v1 (c1) VALUES (7);
ERROR 1105 (HY000): insert into view v1 is not supported now.

MySQL compatibility

  • Views in TiDB are not currently insertable or updatable.

See also